LEASES - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)	Sep. 30, 2019 asset_class	Jan. 01, 2019 USD ($)	Dec. 31, 2018 USD ($)
Lessee, Lease, Description [Line Items]
Number of classes of leased assets-real estate properties | asset_class		4
Right-of-use asset	$ 66,191		$ 72,679	$ 0
Lease liability obligations	$ 66,208		72,416
Remaining lease term	4 years 8 months 27 days
Lease extension period	14 years
Operating lease expense	$ 25,000
Chief Executive Officer
Lessee, Lease, Description [Line Items]
Operating lease expense	$ 2,200
ASU 2016-02
Lessee, Lease, Description [Line Items]
Right-of-use asset			72,700
Lease liability obligations			$ 72,400
Minimum
Lessee, Lease, Description [Line Items]
Remaining lease term	1 month
Maximum
Lessee, Lease, Description [Line Items]
Remaining lease term	11 years